Pi was found by the romans and is the circumference of
a circle or the distance around the outside of a circle.
Pi's Name
The symbol for pi ,π, is the first letter of the word
for perimeter in the Greek language. Pi is often used to
find the perimeter, or circumference, of a circle.
Pi,in the greek alphabet,(the first letters are alpha&
beta)has a neighboring letter called "omicron" it looks like
this:o'(this is just an "o" with an apostrophe!). Look at the bottom for other cool symbols!
Formulas Using Pi
Pi is used for finding the circumference of a circle:
d= diameter c= circumference r= radius π= pi
d= r x 2
d= c ÷ π
c= d x π
c= r x 2 x π
The Numberπ
Pi is an irrational number; it can not be a fraction. Pi
never ends and it doesn't repeat a single number in
itself.
FUN FACT:The 10 millionth digit in pi is the longest recorded
number in pi
Pi
Here is some history of pi...
Pi was found by the romans and is the circumference of
a circle or the distance around the outside of a circle.
Pi's Name
The symbol for pi ,π, is the first letter of the word
for perimeter in the Greek language. Pi is often used to
find the perimeter, or circumference, of a circle.
Pi,in the greek alphabet,(the first letters are alpha&
beta)has a neighboring letter called "omicron" it looks like
this:o'(this is just an "o" with an apostrophe!). Look at the bottom for other cool symbols!
Formulas Using Pi
Pi is used for finding the circumference of a circle:
d= diameter c= circumference r= radius π= pi
d= r x 2
d= c ÷ π
c= d x π
c= r x 2 x π
The Number π
Pi is an irrational number; it can not be a fraction. Pi
never ends and it doesn't repeat a single number in
itself.
FUN FACT:The 10 millionth digit in pi is the longest recorded
number in pi
Here are some cool websites to look at...
This is the pi song explainig some of the history of pi.
http://www.vvc.edu/ph/TonerS/mathpi/mathpimovie.swf
Here you can find your birthday in pi,cool right?
http://www.facade.com/legacy/amiinpi/
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